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参数资料
型号： SI3220DCX-EVB
厂商： Silicon Laboratories Inc
文件页数： 40/112页
文件大小： 0K
描述： DAUGHTER CARD W/DISCRETE INTRFC
标准包装： 1
系列： ProSLIC®
主要目的： 接口，模拟前端（AFE）
已用 IC / 零件： Si3220
已供物品： 板，CD
Si3220/25 Si3200/02
Rev. 1.3
33
Not
Recommended
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3.3.2. Linefeed Operation States
The linefeed interface includes eight different operating
states as shown in Table 18. The linefeed register
settings (LF[2:0], linefeed register) are also listed. The
open state is the default condition in the absence of any
pre-loaded register settings. The device may also
automatically enter the open state if excess power
consumption is detected in the Si3200/2. See "3.8.
Power Monitoring and Power Fault Detection" on page
37 for more details. The register and RAM locations
used for programming the linefeed parameters are
provided in Table 19. See “3.7. Loop Voltage and
Current Monitoring” and "3.8. Power Monitoring and
Power Fault Detection" on page 37, and "3.8.5. Power
Dissipation Considerations" on page 40 for detailed
descriptions and register/RAM locations for these
functions.
Table 18. Linefeed States
Open (LF[2:0]
= 000).
The Si3200/2 output is high-impedance. This mode can be used in the presence of line fault conditions and to
generate open-switch intervals (OSIs). The device can also automatically enter the open state if excess power
consumption is detected in the Si3200/2 or in the discrete bipolar transistors.
Forward Active (LF[2:0]
= 001).
Linefeed is active, but audio paths are powered down until an off-hook condition is detected. The Si3220 and
Si3225 automatically enter a low-power state to reduce power consumption during on-hook standby periods.
Forward On-Hook Transmission (LF[2:0]
= 010).
Provides data transmission during an on-hook loop condition (e.g., transmitting FSK caller ID information
between ringing bursts).
Tip Open (LF[2:0]
= 011).
Sets the portion of the linefeed interface connected to the TIP side of the subscriber loop to high-impedance
and provides an active linefeed on the RING side of the loop for ground-start operation.
Ringing (LF[2:0]
= 100).
Drives programmable ringing waveforms onto the subscriber loop (Si3220) or switches in a centralized ringing
generator by driving an external relay (Si3225).
Reverse Active (LF[2:0]
= 101).
Linefeed circuitry is active, but audio paths are powered down until an off-hook condition is detected. The
Si3220 and Si3225 automatically enter a low-power state to reduce power consumption during on-hook
standby periods.
Reverse On-Hook Transmission (LF[2:0]
= 110).
Provide data transmission during an on-hook loop condition.
Ring Open (LF[2:0]
= 111).
Sets the portion of the linefeed interface connected to the RING side of the subscriber loop to high impedance
and provides an active linefeed on the TIP side of the loop for ground start operation.
相关PDF资料
PDF描述
M3DYK-2020K IDC CABLE - MKR20K/MC20F/MPD20K
SI3220DC0-EVB DAUGHTER CARD W/SI3200 INTERFACE
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A3BRB-2418M IDC CABLE - ASR24B/AE24M/APR24B
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相关代理商/技术参数
参数描述
SI3220-F-GQ 制造商:Silicon Laboratories Inc 功能描述:DUAL-CHANNEL SLIC/CODEC WITH INTERNAL 65 VRMS BALANCED RINGI - Trays
SI3220-F-GQR 制造商:Silicon Laboratories Inc 功能描述:DUAL-CHANNEL SLIC/CODEC WITH INTERNAL 65 VRMS BALANCED RINGI - Tape and Reel
Si3220-FQ 功能描述:电信线路管理 IC Dual-Channel SLIC/ codec RoHS:否 制造商:STMicroelectronics 产品:PHY 接口类型:UART 电源电压-最大:18 V 电源电压-最小:8 V 电源电流:30 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VFQFPN-48 封装:Tray
SI3220-FQR 制造商:Silicon Laboratories Inc 功能描述: 制造商:Silicon Laboratories Inc 功能描述:SLIC 2CH 63DB 45MA 3.3V/5V 64TQFP - Tape and Reel
Si3220-G-FQ 功能描述:电信线路管理 IC Dual-Channel SLIC codec RoHS:否 制造商:STMicroelectronics 产品:PHY 接口类型:UART 电源电压-最大:18 V 电源电压-最小:8 V 电源电流:30 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VFQFPN-48 封装:Tray
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